142522280 has 32 divisors (see below), whose sum is σ = 325074600. Its totient is φ = 56226816.

The previous prime is 142522279. The next prime is 142522307. The reversal of 142522280 is 82225241.

It can be written as a sum of positive squares in 4 ways, for example, as 108951844 + 33570436 = 10438^2 + 5794^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21485 + ... + 27324.

Almost surely, 2^142522280 is an apocalyptic number.

142522280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142522280 is an abundant number, since it is smaller than the sum of its proper divisors (182552320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142522280 is a wasteful number, since it uses less digits than its factorization.

142522280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48893 (or 48889 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 142522280 is about 11938.2695563469. The cubic root of 142522280 is about 522.3491838249.

The spelling of 142522280 in words is "one hundred forty-two million, five hundred twenty-two thousand, two hundred eighty".